Consider the following reaction occuring in basic medium 2 MnO 4-( aq )+ Br -( aq ) longrightarrow 2 MnO 2( s )+ BrO 3-( aq ) How the above reaction can be balanced further?

Question

Consider the following reaction occuring in basic medium 2 MnO 4-( aq )+ Br -( aq ) longrightarrow 2 MnO 2( s )+ BrO 3-( aq ) How the above reaction can be balanced further? (A) By adding 2 OH -ions on right side (B) By adding one H 2 O molecule to left side (C) By adding 2 H +ions on right side (D) Both (a) and (b)

Tardigrade Admin · Accepted Answer

Since reaction is occuring in basic medium, therefore,

2 O H^{-}

are added on right side.

2 M n O_{4}^{-} (a q) + B r^{-} (a q) ⟶ 2 M n O_{2} (s) + B r O_{3}^{-} (a q) + 2 O H^{-} (a q)

Now, hydrogen atoms can be balanced by adding one

H_{2} O

molecule to the left side

2 M n O_{4}^{-} (a q) + B r^{-} (a q) + H_{2} O (l) ⟶

2 M n O_{2} (s) + B r O_{3}^{-} (a q) + 2 O H^{-} (a q)

Q. Consider the following reaction occuring in basic medium $2 M n O_{4}^{-} (a q) + B r^{-} (a q) ⟶ 2 M n O_{2} (s) + B r O_{3}^{-} (a q)$ How the above reaction can be balanced further?

By adding $2 O H^{-}$ ions on right side

By adding one $H_{2} O$ molecule to left side

By adding $2 H^{+}$ ions on right side

Both (a) and (b)

Q. Consider the following reaction occuring in basic medium 2MnO4−​(aq)+Br−(aq)⟶2MnO2​(s)+BrO3−​(aq) How the above reaction can be balanced further?

By adding 2OH−ions on right side

By adding one H2​O molecule to left side

By adding 2H+ions on right side

Both (a) and (b)

Q. Consider the following reaction occuring in basic medium $2 M n O_{4}^{-} (a q) + B r^{-} (a q) ⟶ 2 M n O_{2} (s) + B r O_{3}^{-} (a q)$ How the above reaction can be balanced further?

By adding $2 O H^{-}$ ions on right side

By adding one $H_{2} O$ molecule to left side

By adding $2 H^{+}$ ions on right side